Waterproof door hinge



18, 1952 p C, HELZ 2,618,010

` WATERPROOF DOOR HINGE Filed June 17, 1949 INVENTOR PHILIP C. HELZPatented Nov. 18, 1.952

lUNITED 4,LrS'TAT-'ES PATENT OFFICE WATERPROOF DOOR HINGE VPhilip C.Helz, Milwaukee, Wis.

Application June 17, 1949, Serial No. 99,659

i claim. l

My invention refers to door hinges, especially adapted for use in heavydoors, for refrigerator rooms of packing houses and meat markets, andsaid hinges may obviously be used on doors of various other commodities.

The primary object of my invention is to provide a simple, durable andadjustable waterproof set of hinges, and the door load is supported uponanti-friction balls, encased in shouldered hollow pintles, and adjustedto take up wear or sag of the door, the hollow pintles being supportedin anchor strips secured tothe frame 'wall about said door. The anchorVstrips @carry waterproof hollow caps, encasing the'fopen ends of thehollow pintles and also carry lugs', having adjustable bolts therein,engaging the load supporting balls.

With the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the novel construction,combina- I'tion and arrangement of parts, substantially as hereinafterdescribed, and more particularly dened by the appended claim, it beingunderstood that such changes in the precise embodiment of the hereindisclosed vinvention may be made as come within the scope of the claim.

In the accompanying drawings is illustrated one complete example of thephysical embodiment of the present invention constructed according tothe best mode so far devised for the practical application of theprinciples thereof.

In the drawings:

Figure 1 representsl a face View of a hinged door embodying the featuresof my invention.

Figure 2 is a fragmentary face view of one of the waterproof hinges.

Figure 3 is a longitudinal sectional view of said hinge, the sectionbeing indicated by line 3, 3 of Figure 2.

Figure 4 is an enlarged cross section of the hinge and door structure,the section being indicated byline 4, 4 of Figure 1; and

Figure 5 is an enlarged detail horizontal sectional view, taken on theline 5-5 of Figure 2, looking in the direction of the arrows.

Referring by characters to the drawings, A indicates a door frame and Bthe door seated therein. Secured to the door frame is a longitudinallydisposed strap I extending approximately the length of said door.

Secured to the upper and lower portion of the strap I is a pair ofhollow caps 2, having anged bases 2', which bases are secured by boltsto the strap I.

Also extending from the strap I is a pair of integral lugs 3, the samebeing aligned and spaced kfrom the caps 2.

.Each pair of caps and lugs have tted therebetween a hollow hinge pintlebarrel 4. The upper end of each pintle is reduced in diameter andshouldered for the reception of a bearing 5, which is interposed betweenthe end portion of the hollow pintle barrel 4 and the waterproof hollowcap 2.

As best indicated in Figure 3 of the drawings, the bore of the hollowpintle barrel 4 is provided with an interior shoulder 4 adjacent to itsupper end, which end is provided with an oil channel 6 that extends fromthe shouldered portion 4' of the pintle barrel to its end.

The strap lug 3 is in threaded engagement with ,a pintle bolt 'I havinga reduced portion 'I'I the end of which is concaved to serve as a seatfor an antifriction ball 8, which ball is caged between the end of thepintle bolt and the shoulder 4 of the hollow pintle barrel, whereby thedoor load is sustained.

The reduced portion of the bolt has fitted thereto a roller bearing 5',the same being nested within the hollow pintle barrel.

The Waterproof cap 2 is provided with a centrally disposed oil port 8',which oil port has tted therein a threaded plug 8, whereby said port isclosed after the introduction of oil into the hinge, whereby the cap isrendered waterproof and will thus shed all moisture from the hingeassemblage. In order to insure proper alignment of the pair of hingepintle barrels 4, the same are connected by an offset strap I', whichstrap is secured to the outer face of the door, as best shown in Figurel of the drawings.

When it is desired to adjust the door against.

sagging in its wall opening, the pintle bolts-f1 are rotated withintheir lug seats 3 upwardlyu whereby the pintle barrels 4 are raised andtheir' upper oil port ends will telescopically move within the hollowwaterproof caps 2 to thus raise thev door for clearance, due to a loadstrain that willresult in sagging. It is also understood that the,V

and an adjustable pntle bolt in threaded engagement with the lug andreceived Within the pintle barrel, a bearing ball mounted between theupper end of the bolt and the interior shoulder of the pintle barrel,said pintle barrel having a reduced upper end received within the cap, abearing between said reduced upper end and the cap, and a. bearingbetween the pintle bolt and the pintle barrel.

PHILIP C. HELZ.

REFERENCES CITED The following references are of record in the le ofthis patent:

Number Number UNITED STATES PATENTS Name Date Aebi Aug. 13, 1907 RixsonJan. 19, 1915 May July 8, 1941 `FOREIGN PATENTS Country Date GreatBritain Mar. 6, 1902 Germany Nov. 7J 1904 Germany Jan. 3, 1919 GermanyJuly 30, 1936

